My go-to setup is Nikon D5300 with micro Nikkor 40mm lens. I'm interested in varieties and minting process so I like harsh lighting to show the unusual features of a coin. Just took picture of this 1984 2 fen. Went to camerashuttercount.com and find out this is the 40130-th picture of my Nikon D5300.

Very impressive! is these pictures also taken with the enlarging lens?

The mechanical doubling picture was taken with the Rodagon APO 75 D enlarging lens. The flowline photos were shot with Canon 35mm F2.8 macro bellows lens. 10 pictures were taken for stacking, about 3:1. It is a lot easier with these bellows macro lens to shoot high magnification pictures. I managed to push to 8X with the Minolta 12.5mm F2.0 bellows micro (macro) lens. But going even higher is made difficult by diffraction.